Hundreds of black and white youths have taken to the streets of Brixton, in south London attacking police, ransacking shops and burning cars after the death of a black man in police custody.

About 50 police officers in riot gear have formed a line across Brixton's main road to stifle pockets of trouble and prevent anyone entering the area - the scene of massive rioting in 1981 caused by racial tensions.

One report said two shots were fired as the centre of the demonstration moved into the area of the Ritzy cinema.

A police motor cyclist is reported to have been pulled from his machine by a crowd of at least 10 rioters.

Officers have sealed off a two-mile area around the centre of Brixton and both Brixton and neighbouring Stockwell tube stations have been closed.

A police helicopter has been despatched over the area.

Casualities

Riots broke out after a peaceful picket of the police station - triggered by the death last week of Wayne Douglas, 26.

Police said Mr Douglas, who was being questioned about a burglary, collapsed at the local police station.

A post-mortem later revealed he had suffered from heart disease.

The protest about his death developed into a march down Brixton's main street.

A standoff ensued between the police and about 100 demonstrators triggering a backlash of violence.